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HEATER ENABLE (aXHn!)
This enables, disables, or tests the heater control circuit. Disabling
the heaters removes power from the control circuit. If the Test option
is used, limited power is continuously sent to each heater zone to
test heater function at room temperature
SAMPLE COUNT (aXSnnn!)
This command sets the number of internal samples used to
calculate the median measurement result. More internal samples
consume more power while providing greater immunity to conditions
like turbulent high-speed wind. Fewer samples consume less
power while providing less immunity to disruptive conditions.
Default setting is 100.
THRESHOLD (aXTnnn!)
Threshold sets the minimum wind speed needed before a new polar
wind direction is calculated. The default value is 25 cm/s (0.25 m/s). A
greater-than-zero threshold can help provide more meaningful scalar
wind direction averages. The threshold for Cartesian (u-v) output
format is automatically zero regardless of this setting.
WIND SPEED MULTIPLIER (aXMnnnnn!)
All wind speed measurements are multiplied by this parameter. The
default value is 10000 for a multiplier of 1.0000.
WIND DIRECTION OFFSET (aXO±nnnn!)
Use this parameter to add or subtract a wind direction offset. Value
is degrees x 10 and may be positive or negative. Wind direction is
always re-scaled to a 0-360 range after offset is applied. The default
value is 00000.
4.4 LOW POWER OPERATION
With default settings and a 2-second sampling period, the average
current consumption is less than 4 mA. Average current consumption
may be reduced further by making fewer measurements (one every
5 or 10 seconds, for example) or lowering the Sample Count to
fewer than 16. Lowering the Sample Count below 16 may limit
measurement accuracy in winds greater than 30 m/s.
4.5 TROUBLESHOOTING
Symptom: After using setup program, SDI-12 mode is disabled.
(Note: Setup program is only for RS232 mode.)
Cause:
Saving parameters in setup program disables SDI-12
mode.
Solution:
While in RS232 command mode, send the following
commands via the "Communications" tab in the setup
software or via a terminal program to re-enable
SDI-12 mode. (">" is the command prompt):
>SET025
>SET77
Power cycle the sensor.
Sensor will be in SDI-12 mode.
WIRING DIAGRAM
Use shielded cable. Connect cable shield to earth ground as shown.
5.0 EMC COMPLIANCE
This device complies with Part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits
for a Class A digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio
communications.
Operation of this equipment in a residential area
is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme à Ia norme NMB-001 du Canada.
EN55011/CISPR 11, Group 1, Class B device.
Class B equipment is suitable for use in domestic establishments and
in establishments directly connected to a low voltage power supply
network which supplies buildings used for domestic purposes.
6.0 WARRANTY
This product is warranted to be free of defects in materials and construction
for a period of 12 months from date of initial purchase. Liability is limited
to repair or replacement of defective item. A copy of the warranty policy
may be obtained from R. M. Young Company.
7.0 CE COMPLIANCE
This product has been tested and complies with European
CE requirements for the EMC Directive. Please note that shielded
cable must be used.
Page 3
Model 86000-SDI
Ultrasonic Anemometer
86000-SDI-90(G)
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